http://3d-object.livejournal.com/ ([identity profile] 3d-object.livejournal.com) wrote in [personal profile] cotya 2013-05-20 04:21 pm (UTC)

Сейчас перечитал и понял - то, что вы предлагаете, и есть двутавр, только еще и пространственный, две треугольные трубы в виде восьмерки. Да! Это оно :)
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